Mechanical Field Engineer – Steam Generation Facility

At Amentum, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and sustainability. If you're passionate about making a real impact and want to be part of a community that values ethical excellence, this is the place where your ambition can thrive.

Here, we believe that success comes from continuously pushing boundaries and working together to deliver on our promises. We embrace challenges with confidence and are dedicated to creating a secure and vibrant future for all.

We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed – today and into tomorrow.  We offer an exciting range of opportunities to develop your career within a supportive team who always strive to do the right thing for our people, clients and communities.

Work-life balance and flexibility is a key focus area for us. We’re happy to discuss hybrid, part-time and flexible working hours, patterns and locations to suit you and our business.

About the Opportunity

We are seeking an experienced Mechanical Field Engineer to support the delivery of a major steam generation facility project in Barrow. This is a site-based project engineering role acting as the key interface between the construction installation teams and the engineering/design office, ensuring that all mechanical installation activities are executed in accordance with approved design intent, applicable codes, specifications, and project quality requirements.

The successful candidate will possess strong knowledge of mechanical piping systems, structural steel erection, fabrication and installation processes, and be capable of interpreting engineering documentation including isometrics, GA drawings, and 3D engineering models. The role requires close coordination with construction, QA/QC, design engineering, and subcontractor teams throughout all phases of installation and commissioning preparation.

Key Responsibilities

• Act as the primary mechanical engineering interface between the design engineering team and site construction teams.

• Ensure installation activities are completed in accordance with approved drawings, specifications, procedures, and design intent.

• Review and interpret:

  • Mechanical isometrics

  • General arrangement drawings

  • P&IDs

  • Fabrication drawings

  • Engineering 3D models

  • Structural steel erection drawings

• Provide field engineering support for:

  • Mechanical pipework installation

  • Structural steel erection

  • Fabrication and fit-up activities

  • Painting and coating systems

  • Thermal insulation scope

• Resolve site technical queries and coordinate design clarifications with engineering disciplines.

• Support constructability reviews and identify potential installation clashes or design issues.

• Ensure compliance with applicable standards and codes including:

  • ASME piping codes

  • ISO standards

  • Project specifications

  • Quality and welding requirements

• Monitor subcontractor installation activities to ensure workmanship and compliance with engineering documentation.

• Participate in walkdowns, inspections, punch listing, and turnover activities.

• Coordinate with QA/QC teams regarding inspections, test packs, and mechanical completion requirements.

• Support management of field changes and red-line markups for as-built documentation.

• Interface with planning and construction management teams to support installation sequencing and progress reporting.

• Promote safe systems of work and adherence to project HSE requirements.

Here's What You'll Need

• Degree or HNC/HND in Mechanical Engineering or related discipline.

• Proven experience in a Mechanical Field Engineer, Project Engineer, or Construction Engineer role within heavy industrial, energy, nuclear, or process plant environments.

• Strong understanding of:

  • Mechanical piping systems

  • Steam generation or process plant installations

  • Structural steel erection

  • Fabrication and welding processes

• Working knowledge of applicable:

  • ASME piping codes

  • ISO standards

  • Mechanical installation standards

• Ability to read and interpret:

  • Isometric drawings

  • P&IDs

  • Structural and fabrication drawings

  • Engineering models

• Experience supporting full installation lifecycle including:

  • Fabrication

  • Installation

  • Painting/coatings

  • Insulation

  • Mechanical completion

• Strong coordination and communication skills with the ability to work across multidisciplinary teams.

• Familiarity with quality documentation, ITPs, NCRs, and field change processes.

• Site construction experience in highly regulated environments preferred.

Desirable

• Experience on steam generation, power, nuclear, or major industrial infrastructure projects.

• Knowledge of NEC contracts and project delivery environments.

• CSCS or equivalent site certification.

• SMSTS or IOSH Managing Safely qualification beneficial.

• Experience using engineering model review platforms such as Navisworks or similar.

Our Culture

Our values are built on a strong foundation of safety, integrity, and respect for every individual. People are at the heart of our mission, and we believe in supporting one another through a culture of care and collaboration.

We strive to create a workplace where everyone feels they belong and can thrive. Supporting mental wellbeing and fostering a sense of connection are essential to how we work.

When we embrace different perspectives and work together, we become more innovative, more agile, and more successful.

We partner with VERCIDA, for greater online accessibility please visit www.vercida.com to view and access our roles. As a Disability Confident employer, we will interview all disabled applicants who meet the minimum criteria for a vacancy. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role.

If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team.